Light fixture

Abstract

A light fixture, such as a moving head light fixture, comprises a first element and a second element joined by cooperating first and second attachment structures. The first attachment structure is located in a first compartment in the first element and extends in a first direction towards the second element. The second attachment structure forms part of the second element. To facilitate rain protection of the joint, the first element comprises an outwardly projecting wall portion forming a first collar circumferentially around a first opening in the first element, where the projecting wall portion extends in a second direction being transverse to the first direction and terminates in a first free edge outside the first compartment. The second element comprises a groove configured to receive the first collar, where the groove extends circumferentially around a centre axis of the second attachment structure.

What is claimed is: 
     
       1. A light fixture comprising:
 a first element and a second element joined by cooperating first and second attachment structures, 
 wherein the first attachment structure is located in a first compartment in the first element and extends in a first direction towards the second element, 
 wherein the second attachment structure forms part of the second element, 
 wherein the first element comprises an outwardly projecting wall portion forming a first collar circumferentially around a first opening in the first element, the outwardly projecting wall portion extending in a second direction being transverse to the first direction and terminating in a first free edge outside the first compartment, 
 wherein the second element comprises a groove configured to receive the first collar, the groove extending circumferentially around a centre axis of the second attachment structure. 
 
     
     
       2. The light fixture of  claim 1 , wherein the groove extends from an outer surface of the second element towards the first element. 
     
     
       3. The light fixture of  claim 1 , wherein the second element comprises a second compartment with a second opening, the second attachment structure being arranged in the second compartment. 
     
     
       4. The light fixture of  claim 1 , wherein the first attachment structure is configured to movably engage the second attachment structure thereby forming a rotational joint between the first and second elements. 
     
     
       5. The light fixture of  claim 1 , wherein the groove comprises a first outwardly extending surface portion and a second outwardly extending surface portion, each of the first and second outwardly extending surface portions extending towards the first element from an outer surface of the second element and terminating at an opposite end point, the first and second outwardly extending surface portions each extending circumferentially around the centre axis of the second attachment structure. 
     
     
       6. The light fixture of  claim 5 , wherein the first and second outwardly extending surface portions extend substantially parallel circumferentially around the centre axis of the second attachment structure. 
     
     
       7. The light fixture of  claim 5 , wherein the first and second outwardly extending surface portions each has a height being a distance from the outer surface of the second element to the opposite end point, the first outwardly extending surface portion being arranged closer to the centre axis of the second attachment structure, the second outwardly extending surface portion extending circumferentially around the first outwardly extending surface portion and the centre axis of the second attachment structure, the height of the first outwardly extending surface portion being larger than the height of the second outwardly extending surface portion. 
     
     
       8. The light fixture of  claim 6 , wherein the second element comprises a third outwardly extending surface portion, the third outwardly extending surface portion extending circumferentially around the first outwardly extending surface portion, the second outwardly extending surface portion, and the centre axis of the second attachment structure, a height of the third outwardly extending surface portion being smaller than a height of the first outwardly extending surface portion and a height of the second outwardly extending surface portion. 
     
     
       9. The light fixture of  claim 5 , wherein at least one of the first, second, and third outwardly extending surface portions extends circumferentially around the centre axis of the second attachment structure in a substantially circular shape. 
     
     
       10. The light fixture of  claim 1 , wherein the groove comprises a second outwardly projecting wall portion forming a second collar circumferentially around the centre axis of the second attachment structure, the second outwardly projecting wall portion extending in a third direction being transverse to the first direction and terminating in a second free edge outside the second element.